Portion of a shoe upper



FIG. 1 is a front perspective view of a portion of a shoe upper showing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a side elevational view thereof;

FIG. 4 is a front view thereof; and,

FIG. 5 is a top plan view thereof.

The broken line immediately adjacent to the shaded area represents an unclaimed boundary of the design. The broken line showings within the shaded area and the broken line showing of the remainder of the shoe are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a portion of a shoe upper, as shown and described. 